I have today downloaded and built emacs 24.4.50.1 and am using it and its
uptodate gnus version, and am using the same files as when I was using
24.3.1.

I have found that when reading html emails from google+ I have the text part
of the email at the top of the message in a greyish-white background, then the
mail-headers in an expanded-form showing all headers, then its content-type
like this -
--8<---------------cut here---------------start------------->8---
Content-Type: multipart/alternative; boundary=047d7b15ac91ee7ac304f633c3c2

--047d7b15ac91ee7ac304f633c3c2
Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes
Content-Transfer-Encoding: base64
--8<---------------cut here---------------end--------------->8---
and showing a block of code which looks like a gpg-signature, followed by the
htmlized version of the message displaying all html-code.

With a nnrss feed of articles written in org-mode and exported to a WordPress
blog by 'org2blog' I see a plain-text version of the posting, which is
followed by an htmlized version of the same posting, with these headers -
--8<---------------cut here---------------start------------->8---
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="=-=-="
Message-ID: <18@A_taste_of_linux.nnrss>

--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
--8<---------------cut here---------------end--------------->8---

In an nnml posting to the 'emacs-orgmode@gnu.org' mailing list I see the text
part of the posting, followed by an expanded version of the headers, in which
I see this as a portion -
--8<---------------cut here---------------start------------->8---
X-Gnus-Mail-Source: pop:boudiccas@talktalk.net@mail.talktalk.net
Message-ID: <CALS4=HCXDWaPEWqf73=V1Lh-GGmN4RJ9dT051AhWWC-OrqTRfA@mail.gmail.com>
To: emacs-orgmode@gnu.org
Content-Type: multipart/alternative; boundary=089e013d1dd6bfb2e004f62a8433
X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address
	(bad octet value).
X-Received-From: 2a00:1450:4010:c04::22b
Subject: [O] Help needed - export markdown is it supposed to pre-pend html?
X-BeenThere: emacs-orgmode@gnu.org
X-Mailman-Version: 2.1.14
--8<---------------cut here---------------end--------------->8---

and a plain-text version of the email, followed by a htmlized version of the
email with these headers -
--8<---------------cut here---------------start------------->8---
--089e013d1dd6bfb2e004f62a8433
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
--8<---------------cut here---------------end--------------->8---

Overall, reading emails and other postings with this version of emacs/gnus is
a patchy experience.

AFAIK these are the relevant code sections from my '.gnus.el' files -
--8<---------------cut here---------------start------------->8---
(require 'w3m)
; You need install the ClI brower 'w3m' and Emacs plugin 'w3m'
;(setq mm-text-html-renderer 'w3m)
(setq mm-text-html-renderer 'shr)
(setq gnus-article-hide-headers)
;; Inline images?
(setq-default mm-attachment-override-types '("image/.*"))
(setq-default mm-inline-text-html-with-images t)
--8<---------------cut here---------------end--------------->8---

If this is not the right place to place this report, where should, or who
should, I send it please?

Thanks
Sharon.
-- 
A taste of linux = http://www.sharons.org.uk
my git repo = https://bitbucket.org/boudiccas/dots
TGmeds = http://www.tgmeds.org.uk
Debian testing, Fluxbox 1.3.5, emacs 24.3.1